private void HandlePanGesture(UIPanGestureRecognizer recognizer)
{
var translation = recognizer.TranslationInView(recognizer.View);
//distance of pan gestire from start position
var distance = translation.X / UIScreen.MainScreen.Bounds.Width * -1;
switch (recognizer.State)
{
case UIGestureRecognizerState.Began:
_panGestureIsActive = true;
MainViewController.DismissViewController(true, null);
break;
case UIGestureRecognizerState.Changed:
var update = Math.Max(Math.Min((float)distance, 1.0f), 0.0f);
UpdateInteractiveTransition(update);
break;
default:
_panGestureIsActive = false;
var velocity = recognizer.VelocityInView(recognizer.View).X * -1;
if (velocity >= 100 || velocity >= -50 && distance >= 0.5)
{
FinishInteractiveTransition();
}
else
{
CancelInteractiveTransition();
}
break;
}
}
void CloseMenu()
{
MainViewController.DismissViewController(true, null);
}